I can only tell you what works for us. We got the first generation ACR ais
that came with it's own antenna and gps
. We run it on our Raymarine
C80 with not issues and have for probably the last 6 years.
We do not believe in splitters as we think each system must carry it's own weight. Same with the GPS. We have 2 - one runs the ais/chartplotter and the other runs other stuff.
ACR stopped making the brand we have some time ago but we got a note from that they came out with a new model. Take a look a ACR but also do not fall into the trap that if I have fewer wires I have less things to go wrong. I our opinion we do not want our ais
interfering with our radio
and vice versa.